eu.dnetlib.data.mdstore.modular.connector

Interface MDStoreTransactionManager

public interface MDStoreTransactionManager

Method Summary

Modifier and Type	Method and Description
boolean	commit(String transactionId, String mdstoreId, MDStore currentMDStore) Commit the transaction.
void	createMDStore(String mdId) Creates the md store.
void	dropMDStore(String mdId) Drop md store.
Boolean	dropTransaction(String mdId, String idToDrop) Manually drop an old collection assigned to a particular mdStore
Boolean	dropUsed(String mdId, String idToDrop) Manually drop an old collection assigned to a particular mdStore
void	garbage() Start the garbage collection of the old mdstore not used
MDStoreManagerInfo	getInfoForCurrentMdStore(String mdStoreId) Return a JSON about the transaction assigned to a particular mdstore
String	getMDStoreCollection(String mdId) Gets the MD store collection.
String	readMdStore(String mdStoreId) Book a a current mdstore, so the transaction manager can't delete during a possible commit, until the resultset associate has not expired
String	startTransaction(String mdId, boolean refresh) Start a new transaction for writing in the mdstore this will create a temporary mdstore in which save the content. and after finished switch it to the existing one
void	verifyConsistency() Verify consistency.

Method Detail

verifyConsistency

void verifyConsistency()
                throws eu.dnetlib.data.mdstore.MDStoreServiceException

Verify consistency.

Throws:

eu.dnetlib.data.mdstore.MDStoreServiceException - the MD store service exception

createMDStore

void createMDStore(String mdId)
            throws eu.dnetlib.data.mdstore.MDStoreServiceException

Creates the md store.

Parameters:

mdId - the md id

Throws:

eu.dnetlib.data.mdstore.MDStoreServiceException - the MD store service exception

dropMDStore

void dropMDStore(String mdId)
          throws eu.dnetlib.data.mdstore.MDStoreServiceException

Drop md store.

Parameters:

mdId - the md id

Throws:

eu.dnetlib.data.mdstore.MDStoreServiceException - the MD store service exception

getMDStoreCollection

String getMDStoreCollection(String mdId)
                     throws eu.dnetlib.data.mdstore.MDStoreServiceException

Gets the MD store collection.

Parameters:

mdId - the md id

Returns:

the MD store collection

Throws:

eu.dnetlib.data.mdstore.MDStoreServiceException - the MD store service exception

startTransaction

String startTransaction(String mdId,
                        boolean refresh)
                 throws eu.dnetlib.data.mdstore.MDStoreServiceException

Start a new transaction for writing in the mdstore this will create a temporary mdstore in which save the content. and after finished switch it to the existing one

Parameters:

mdId -

refresh -

Throws:

eu.dnetlib.data.mdstore.MDStoreServiceException - if the mdStore Id doesn't exists in the metadata

commit

boolean commit(String transactionId,
               String mdstoreId,
               MDStore currentMDStore)
        throws eu.dnetlib.data.mdstore.MDStoreServiceException

Commit the transaction.

Parameters:

transactionId - the transaction id

mdstoreId - the mdstore id

currentMDStore - the current md store

Returns:

true, if successful

Throws:

eu.dnetlib.data.mdstore.MDStoreServiceException - the MD store service exception

readMdStore

String readMdStore(String mdStoreId)
            throws eu.dnetlib.data.mdstore.MDStoreServiceException

Book a a current mdstore, so the transaction manager can't delete during a possible commit, until the resultset associate has not expired

Parameters:

mdStoreId -

Returns:

Throws:

eu.dnetlib.data.mdstore.MDStoreServiceException

getInfoForCurrentMdStore

MDStoreManagerInfo getInfoForCurrentMdStore(String mdStoreId)
                                     throws eu.dnetlib.data.mdstore.MDStoreServiceException

Return a JSON about the transaction assigned to a particular mdstore

Parameters:

mdStoreId -

Returns:

Throws:

eu.dnetlib.data.mdstore.MDStoreServiceException

dropUsed

Boolean dropUsed(String mdId,
                 String idToDrop)
          throws eu.dnetlib.data.mdstore.MDStoreServiceException

Manually drop an old collection assigned to a particular mdStore

Parameters:

mdId - : the id of the mdStore

idToDrop - : The id of the collection to be dropped

Returns:

Throws:

eu.dnetlib.data.mdstore.MDStoreServiceException

dropTransaction

Boolean dropTransaction(String mdId,
                        String idToDrop)
                 throws eu.dnetlib.data.mdstore.MDStoreServiceException

Manually drop an old collection assigned to a particular mdStore

Parameters:

mdId - : the id of the mdStore

idToDrop - : The id of the collection to be dropped

Returns:

Throws:

eu.dnetlib.data.mdstore.MDStoreServiceException

garbage

void garbage()
      throws eu.dnetlib.data.mdstore.MDStoreServiceException

Start the garbage collection of the old mdstore not used

Throws:

eu.dnetlib.data.mdstore.MDStoreServiceException